Game Discovery MCP Server

<!-- mcp-name: io.github.moonolgerd/game-mcp -->

A Model Context Protocol (MCP) server that discovers and manages installed games on Windows PC from various platforms including Steam, Epic Games, GOG, Windows Store/Xbox, and other installed programs.

Features

• Multi-platform game discovery: Automatically scans for games from:
• Steam (including custom library locations)
• Epic Games Store
• GOG (Good Old Games)
• Xbox/Windows Store games
• EA games
• Ubisoft Connect games
• Rockstar games
• Battle.Net games
• Other installed programs (via Windows registry)

• Comprehensive game information: Provides details including:
• Game name and platform
• Installation path and executable location
• Installation date and size
• Platform-specific metadata

• MCP Tools Available:
• discover_games: Finds all installed games across all platforms
• get_game_info: Gets detailed information about a specific game
• launch_game: Launches a game by name (if executable is found)

Prerequisites

• .NET 10.0 or later
• Windows operating system

Usage with VS Code

{
  "servers": {
    "GameMcpServer": {
      "type": "stdio",
      "command": "dnx",
      "args": [
        "[email protected]",
        "--yes"
      ]
    }
  }
}

Available Tools

discover_games

Discovers all installed games from all supported platforms.

Example usage in Claude: "Can you discover all the games I have installed on my PC?"

Returns: JSON object with:

• Total game count
• Games grouped by platform
• Detailed list of all games with metadata

get_game_info

Gets detailed information about a specific game by name.

Parameters:

• gameName: The name of the game to search for

Example usage: "Get information about Cyberpunk 2077"

launch_game

Launches a game by name if it has a valid executable path.

Parameters:

• gameName: The exact name of the game to launch

Example usage: "Launch Steam's Half-Life 2"

How It Works

The server uses multiple discovery methods:

1. Steam Games:

• Reads Steam installation path from registry
• Parses libraryfolders.vdf for custom library locations
• Scans steamapps/common directories for game folders

1. Epic Games:

• Reads game manifests from %ProgramData%/Epic/EpicGamesLauncher/Data/Manifests
• Parses JSON manifest files for game information

1. GOG Games:

• Queries Windows registry under SOFTWARE\GOG.com\Games
• Extracts game paths and executable information

1. Xbox/Windows Store:

• Scans %ProgramFiles%/WindowsApps directory
• Parses AppxManifest.xml files for application information
• Filters for gaming applications

1. Registry Programs:

• Scans Windows uninstall registry entries
• Uses heuristics to identify game-like applications
• Filters out system utilities and non-gaming software

Error Handling

The server is designed to be robust and continue functioning even if:

• Some platforms are not installed
• Registry keys are inaccessible
• Directories have permission restrictions
• Individual games have corrupted metadata

Errors are logged to stderr and don't interrupt the discovery process for other platforms.

Security Considerations

• The server only reads system information and doesn't modify anything
• Game launching requires explicit user confirmation through the MCP client
• All file system access is read-only except for launching executables
• Registry access is read-only

Development

This project uses:

• .NET 10.0
• Model Context Protocol SDK for .NET
• Microsoft.Extensions.Hosting for application lifecycle